JERUSALEM (AP) — An incoming attack by Iranian drones and ballistic missiles poses the latest challenge to Israel’s air defense system, which already has been working overtime to cope with incoming rocket, drone and missile attacks throughout the six-month war against Hamas.

Here’s a closer look at Israel’s multilayered air-defense system:

The Arrow: This system developed with the U.S. is designed to intercept long-range missiles, including the types of ballistic missiles Iran said it launched on Saturday. The Arrow, which operates outside the atmosphere, has been used in the current war to intercept long-range missiles launched by Houthi militants in Yemen.